#include "ov5640.h"
#include <stdio.h>
#include <unistd.h>
#include "dvp.h"

const uint16_t ov5640_config[][2] = {
    {0x3103, 0x11},
    {0x3008, 0x82},
    {0x3008, 0x42},
    {0x3103, 0x03},

    {0x3035, 0x21},
    {0x3036, 90},
    {0x3037, 0x12},
    {0x3108, 0x01},

    {0x3630, 0x36},
    {0x3631, 0x0e},
    {0x3632, 0xe2},
    {0x3633, 0x12},
    {0x3621, 0xe0},
    {0x3704, 0xa0},
    {0x3703, 0x5a},
    {0x3715, 0x78},
    {0x3717, 0x01},
    {0x370b, 0x60},
    {0x3705, 0x1a},
    {0x3905, 0x02},
    {0x3906, 0x10},
    {0x3901, 0x0a},
    {0x3731, 0x12},
    {0x3620, 0x52},
    {0x371b, 0x20},
    {0x471c, 0x50},
    {0x3a13, 0x43},  // pre-gain = 1.047x
    {0x3a18, 0x00},  // gain ceiling
    {0x3a19, 0xf8},  // gain ceiling = 15.5x
    {0x3635, 0x13},
    {0x3636, 0x03},
    {0x3634, 0x40},
    {0x3622, 0x01},

    {0x3c01, 0x34},  // Band auto, bit[7]
    {0x3c04, 0x28},  // threshold low sum
    {0x3c05, 0x98},  // threshold high sum
    {0x3c06, 0x00},  // light meter 1 threshold[15:8]
    {0x3c07, 0x07},  // light meter 1 threshold[7:0]
    {0x3c08, 0x00},  // light meter 2 threshold[15:8]
    {0x3c09, 0x1c},  // light meter 2 threshold[7:0]
    {0x3c0a, 0x9c},  // sample number[15:8]
    {0x3c0b, 0x40},  // sample number[7:0]

    {0x3800, 0x00},  // HS
    {0x3801, 0x00},  // HS
    {0x3802, 0x00},  // VS
    {0x3803, 0x08},  // VS
    {0x3804, 0x0a},  // HW (HE)
    {0x3805, 0x3f},  // HW (HE)
    {0x3806, 0x07},  // VH (VE)
    {0x3807, 0x9f},  // VH (VE)
    {0x3808, 0x01},  // DVPHO
    {0x3809, 0x40},  // DVPHO
    {0x380a, 0x00},  // DVPVO
    {0x380b, 0xF0},  // DVPVO
    {0x380c, 0x07},  // HTS
    {0x380d, 0x58},  // HTS
    {0x380e, 0x01},  // VTS
    {0x380f, 0xf0},  // VTS
    {0x3810, 0x00},  // HTS
    {0x3811, 0x10},  // HTS
    {0x3812, 0x00},  // VTS
    {0x3813, 0x08},  // VTS
    {0x3814, 0x44},  // timing X inc
    {0x3815, 0x44},  // timing Y inc
    {0x3820, 0x46},  // flip
    {0x3821, 0x00},  // mirror

    {0x3618, 0x00},
    {0x3612, 0x29},
    {0x3709, 0x52},
    {0x370c, 0x03},
    {0x3a02, 0x02},  // 60Hz max exposure
    {0x3a03, 0xe0},  // 60Hz max exposure
    {0x3a14, 0x02},  // 50Hz max exposure
    {0x3a15, 0xe0},  // 50Hz max exposure
    {0x3824, 0x04},  // PCLK manual divider
    {0x5000, 0xa7},  // Lenc on, raw gamma on, BPC on, WPC on, CIP on
    {0x5001,
     0xA3},  // SDE on, scale on, UV average off, color matrix on, AWB on
    // {0x501d, 0x40}, // enable manual offset of contrast
    {0X501F, 0x01},
    {0x3a0f, 0x30},  // stable range in high
    {0x3a10, 0x28},  // stable range in low
    {0x3a1b, 0x30},  // stable range out high
    {0x3a1e, 0x26},  // stable range out low
    {0x3a11, 0x60},  // fast zone high
    {0x3a1f, 0x14},  // fast zone low
    {0x5800, 0x23},
    {0x5801, 0x14},
    {0x5802, 0x0f},
    {0x5803, 0x0f},
    {0x5804, 0x12},
    {0x5805, 0x26},
    {0x5806, 0x0c},
    {0x5807, 0x08},
    {0x5808, 0x05},
    {0x5809, 0x05},
    {0x580a, 0x08},
    {0x580b, 0x0d},
    {0x580c, 0x08},
    {0x580d, 0x03},
    {0x580e, 0x00},
    {0x580f, 0x00},
    {0x5810, 0x03},
    {0x5811, 0x09},
    {0x5812, 0x07},
    {0x5813, 0x03},
    {0x5814, 0x00},
    {0x5815, 0x01},
    {0x5816, 0x03},
    {0x5817, 0x08},
    {0x5818, 0x0d},
    {0x5819, 0x08},
    {0x581a, 0x05},
    {0x581b, 0x06},
    {0x581c, 0x08},
    {0x581d, 0x0e},
    {0x581e, 0x29},
    {0x581f, 0x17},
    {0x5820, 0x11},
    {0x5821, 0x11},
    {0x5822, 0x15},
    {0x5823, 0x28},
    {0x5824, 0x46},
    {0x5825, 0x26},
    {0x5826, 0x08},
    {0x5827, 0x26},
    {0x5828, 0x64},
    {0x5829, 0x26},
    {0x582a, 0x24},
    {0x582b, 0x22},
    {0x582c, 0x24},
    {0x582d, 0x24},
    {0x582e, 0x06},
    {0x582f, 0x22},
    {0x5830, 0x40},
    {0x5831, 0x42},
    {0x5832, 0x24},
    {0x5833, 0x26},
    {0x5834, 0x24},
    {0x5835, 0x22},
    {0x5836, 0x22},
    {0x5837, 0x26},
    {0x5838, 0x44},
    {0x5839, 0x24},
    {0x583a, 0x26},
    {0x583b, 0x28},
    {0x583c, 0x42},
    {0x583d, 0xce},  // lenc BR offset
    {0x5180, 0xff},  // AWB B block
    {0x5181, 0xf2},  // AWB control
    {0x5182, 0x00},  // [7:4] max local counter, [3:0] max fast counter
    {0x5183, 0x14},  // AWB advanced
    {0x5184, 0x25},
    {0x5185, 0x24},
    {0x5186, 0x09},
    {0x5187, 0x09},
    {0x5188, 0x09},
    {0x5189, 0x75},
    {0x518a, 0x54},
    {0x518b, 0xe0},
    {0x518c, 0xb2},
    {0x518d, 0x42},
    {0x518e, 0x3d},
    {0x518f, 0x56},
    {0x5190, 0x46},
    // {0x5191, 0xf8}, // AWB top limit
    // {0x5192, 0x04}, // AWB bottom limit
    // {0x5193, 0x70}, // red limit
    // {0x5194, 0xf0}, // green limit
    // {0x5195, 0xf0}, // blue limit
    {0x5196, 0x03},  // AWB control
    {0x5197, 0x01},  // local limit
    {0x5198, 0x04},
    {0x5199, 0x12},
    {0x519a, 0x04},
    {0x519b, 0x00},
    {0x519c, 0x06},
    {0x519d, 0x82},
    {0x519e, 0x38},  // AWB control
    {0x5580, 0x06},  // saturation on, bit[1]
    {0x5583, 0x40},
    {0x5584, 0x10},
    {0x5589, 0x10},
    {0x558a, 0x00},
    {0x558b, 0xf8},
    {0x5480, 0x01},  // Gamma bias plus on, bit[0]
    {0x5481, 0x08},
    {0x5482, 0x14},
    {0x5483, 0x28},
    {0x5484, 0x51},
    {0x5485, 0x65},
    {0x5486, 0x71},
    {0x5487, 0x7d},
    {0x5488, 0x87},
    {0x5489, 0x91},
    {0x548a, 0x9a},
    {0x548b, 0xaa},
    {0x548c, 0xb8},
    {0x548d, 0xcd},
    {0x548e, 0xdd},
    {0x548f, 0xea},
    {0x5490, 0x1d},
    {0x5300, 0x08},  // CIP sharpen MT threshold 1
    {0x5301, 0x30},  // CIP sharpen MT threshold 2
    {0x5302, 0x10},  // CIP sharpen MT offset 1
    {0x5303, 0x00},  // CIP sharpen MT offset 2
    {0x5304, 0x08},  // CIP DNS threshold 1
    {0x5305, 0x30},  // CIP DNS threshold 2
    {0x5306, 0x08},  // CIP DNS offset 1
    {0x5307, 0x16},  // CIP DNS offset 2
    {0x5309, 0x08},  // CIP sharpen TH threshold 1
    {0x530a, 0x30},  // CIP sharpen TH threshold 2
    {0x530b, 0x04},  // CIP sharpen TH offset 1
    {0x530c, 0x06},  // CIP sharpen TH offset 2
    {0x5381, 0x1e},  // CMX1 for Y
    {0x5382, 0x5b},  // CMX2 for Y
    {0x5383, 0x08},  // CMX3 for Y
    {0x5384, 0x0a},  // CMX4 for U
    {0x5385, 0x7e},  // CMX5 for U
    {0x5386, 0x88},  // CMX6 for U
    {0x5387, 0x7c},  // CMX7 for V
    {0x5388, 0x6c},  // CMX8 for V
    {0x5389, 0x10},  // CMX9 for V
    {0x538a, 0x01},  // sign[9]
    {0x538b, 0x98},  // sign[8:1]
    {0x3708, 0x64},
    {0x4001, 0x02},  // BLC start from line 2
    {0x4004, 0x02},  // BLC line number
    {0x4005, 0x1a},  // BLC always update
    {0x4300, 0x61},
    {0x4740, 0X21},  // VSYNC active HIGH
    {0x3017, 0x7f},  // Vsync, HREF, PCLK, D[9:6] output enable
    {0x3018, 0xf0},  // D[5:0] output enable
    {0x3008, 0x02},
    {0x0000, 0x00}};

static void hal_delay(uint32_t delay) { usleep(delay * 1000); }

static void ov5640_wr_reg(uint16_t reg, uint8_t data) {
  dvp_sccb_send_data(OV5640_ADDR, reg, data);
}

static uint8_t ov5640_rd_reg(uint16_t reg) {
  return dvp_sccb_receive_data(OV5640_ADDR, reg);
}

uint8_t ov5640_init(void) {
  uint16_t i = 0;
  uint16_t reg = 0;

  for (i = 0; i < sizeof(ov5640_config) / 4; i++)
    ov5640_wr_reg(ov5640_config[i][0], ov5640_config[i][1]);

  return 0x00;
}
